Area of a triangle (Coordinate Geometry) An interactive applet and associated web page that calculate the area of a triangle using the formula method in coordinate geometry. The applet has a triangle with draggable vertices. As you drag them the triangle's area is recalculated from the vertex coordinates using the formula. The grid and coordinates can be turned on and off. The area calculation can be turned off to permit class exercises and then turned back on the verify the answers. The applet can be printed as it appears on the screeAuthor(s): John Page

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Seasonal Migrations: Whooping Cranes Children follow the migrations of animals. They observe, research, and report their findings, and watch journeys progress on real-time maps. Through these interrelated investigations, students discover that sunlight drives all living systems and they learn about the dynamic ecosystem that surrounds and connects them. Fall: Students watch chicks grow and then "join" the migration as humans teach the birds a new route using an ultra-light plane to lead the way. Daily updates: September-December.
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Hexagons In this video segment from Cyberchase, the CyberSquad tessellates hexagons to finish crossing the lava river.Author(s): Creator not set

Don't Crack Humpty Student groups are provided with a generic car base. The groups then design a device/enclosure that will protect an egg on or in the car as it is rolled down a ramp at increasing slopes. Students will be expected to perform basic mathematical calculations using their data.Author(s): No creator set

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Blow-and-Go Parachute Students make a skydiver and parachute contraption to demonstrate how drag caused by air resistance slows the descent of skydivers as they travel back to Earth. Gravity pulls the skydiver toward the Earth, while the air trapped by the parachute provides an upward resisting force (drag) on the skydiver.Author(s): No creator set

2.2.12 Activity: living through change This unit looks at the history of institutions in the twentieth century, starting with a case study of Lennox Castle Hospital. It tries to make sense of the history of Lennox Castle, and of institutional life in general, through testimony of those who experienced institutions as inmates and as nurses, as well as through Erving Goffman's medel of the 'total institution'. It examines the social bases of segragation, the professionalisation of staff in asylums and institutions, and campaigns for chAuthor(s): The Open University

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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

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2.2.6 Skills for the attendants This unit looks at the history of institutions in the twentieth century, starting with a case study of Lennox Castle Hospital. It tries to make sense of the history of Lennox Castle, and of institutional life in general, through testimony of those who experienced institutions as inmates and as nurses, as well as through Erving Goffman's medel of the 'total institution'. It examines the social bases of segragation, the professionalisation of staff in asylums and institutions, and campaigns for chAuthor(s): The Open University

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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

Perpendicular lines. (Coordinate Geometry) An interactive applet and associated web page that show how to determine of one line is perpendicular to another in coordinate geometry. The principle used is that if two lines a re perpendicular to each other the slope of one is the negative reciprocal of the other. The applet shows to lines that the user can move. The slopes are continuously calculated as you drag them, and if the they are parallel they change color. The calculation is shown on screen updated continuously as you drag. The gridAuthor(s): John Page

Brassica pollination Brassica plants produce seeds to reproduce. They need to be cross-pollinated in order to make seeds.Author(s): Bogdan

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Absolute Beginner #8 - This is a Japanese Gift For You Learn Japanese with JapanesePod101.com! It’s your friend’s birthday, and it would be a good idea to buy her something. After all, she’s giving you a place to live and teaching you basic Japanese while you’re in Japan. You need to learn some new vocabulary to give her a gift and some polite conversation so you [...]Author(s): JapanesePod101.com

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Personalized Medicine - 10th Dialogue on Science Academia Engelberg Foundation We are entering an age in which the complete genome information of individuals will be readily available. The availability of this information will result in a paradigm shift in medical research and in health care, including diagnosis and prevention. Due to rapid advances in the sequencing technology, the costs to determine the full genome of an individual person will soon drop below 1’000 dollars.
The promise of ubiquitous availability of personal genome sequences poses opportunities and chaAuthor(s): No creator set